JP3184685B2 - Method and apparatus for dispersing a gas in a liquid or slurry - Google Patents
Method and apparatus for dispersing a gas in a liquid or slurryInfo
- Publication number
- JP3184685B2 JP3184685B2 JP28210593A JP28210593A JP3184685B2 JP 3184685 B2 JP3184685 B2 JP 3184685B2 JP 28210593 A JP28210593 A JP 28210593A JP 28210593 A JP28210593 A JP 28210593A JP 3184685 B2 JP3184685 B2 JP 3184685B2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- rotor
- liquid
- slurry
- rotor blade
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
- B01F23/2331—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
- B01F23/2331—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements
- B01F23/23311—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements through a hollow stirrer axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
- B01F23/2331—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements
- B01F23/23314—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements through a hollow stirrer element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
- B01F27/112—Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades
- B01F27/1125—Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades with vanes or blades extending parallel or oblique to the stirrer axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
- B01F27/115—Stirrers characterised by the configuration of the stirrers comprising discs or disc-like elements essentially perpendicular to the stirrer shaft axis
- B01F27/1151—Stirrers characterised by the configuration of the stirrers comprising discs or disc-like elements essentially perpendicular to the stirrer shaft axis with holes on the surface
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Gas Separation By Absorption (AREA)
- Treating Waste Gases (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、気体を液体中に分散
し、この分散に使用する気体をロータに設けられた分散
用ブレードを介してその液体中に供給するための方法と
装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for dispersing a gas in a liquid and supplying the gas used for the dispersion to the liquid via a dispersion blade provided on a rotor. It is.
【０００２】[0002]
【従来の技術】米国特許第4,078,026 号では、気体を液
体中に分散するための装置を紹介し、前記装置の１つの
好適な実施例によれば、被分散気体はロータの中空軸を
介して導入され、特定の気体ダクトを通して液状スラリ
へ注入される。米国特許第4,078,026 号のこの装置は、
処理中は液体またはスラリ中に沈めて、装置の少なくと
もステータとロータは完全に液体面またはスラリ面の下
に位置するようにする。BACKGROUND OF THE INVENTION U.S. Pat. No. 4,078,026 introduces an apparatus for dispersing a gas in a liquid, and according to one preferred embodiment of the apparatus, the gas to be dispersed is passed through a hollow shaft of a rotor. It is introduced and injected into the liquid slurry through a specific gas duct. This device of U.S. Pat.No. 4,078,026
Submerged in the liquid or slurry during processing so that at least the stator and rotor of the device are completely below the liquid or slurry surface.
【０００３】米国特許第4,425,232 号からは、ロータ・
ステータポンプ組立体が公知であり、そのロータ本体
は、ハブ、ブレードおよび上部プレートの各部材を有
し、一定の構造を形成している。気体流は、気体チャン
バに導入されるが、気体チャンバから横に排出され、ス
ラリ分散用に設けられた可動ブレードの表面に沿って気
体ポケットに流入する。[0003] From US Pat. No. 4,425,232, rotor rotors are disclosed.
2. Description of the Related Art A stator pump assembly is known, in which a rotor body has a hub, a blade, and an upper plate to form a structure. The gas flow is introduced into the gas chamber but exits laterally from the gas chamber and flows into the gas pocket along the surface of a movable blade provided for slurry distribution.
【０００４】[0004]
【発明が解決しようとする課題】上述の米国特許による
両装置において、これらの装置の駆動力は気体の供給量
に依存しているため、気体の供給が遮断されると、駆動
力は本質的に増す。さらに、遮断後は、周囲のスラリに
含まれている粒子が分散工程にとって大切な気体注入口
を塞ぐことがある。したがって、装置を再始動すると、
気体の液体中への分散が実質的にさらに困難になるか、
またはほとんど全停止状態となる。In the two devices according to the above-mentioned U.S. patents, the driving force of these devices depends on the gas supply, so that when the gas supply is cut off, the driving force is essentially reduced. To increase. Furthermore, after blocking, particles contained in the surrounding slurry may block the gas inlet, which is important for the dispersion process. Therefore, when you restart the device,
Whether dispersing the gas into the liquid becomes substantially more difficult,
Or almost completely stopped.
【０００５】本発明は、従来技術の欠点のいくつかを解
消し、改善され、より確実に動作する、気体を液体中に
分散する装置を作ることを目的とする。The present invention seeks to overcome some of the disadvantages of the prior art and to provide an improved and more reliable device for dispersing a gas in a liquid.
【０００６】[0006]
【課題を解決するための手段】本発明による気体を液体
またはスラリ中に分散する装置では、装置により取り込
まれる力を均衡させるために、ロータブレードの形成す
る外周の分散面上に気体排出口を設けて、分散処理の開
始時に、気体排出口に流入する恐れのある粒子をそこか
ら除去できるようにしている。本発明の主たる新規な特
徴は、添付の特許請求の範囲に明らかである。In the apparatus for dispersing a gas in a liquid or slurry according to the present invention, a gas outlet is provided on a dispersion surface on an outer periphery formed by a rotor blade in order to balance a force taken in by the apparatus. This is so that at the start of the dispersion process, particles which may flow into the gas outlet can be removed therefrom. The main novel features of the present invention are apparent in the appended claims.
【０００７】本発明によれば、ロータブレードは箱状に
形成され、ロータブレード内で生じる液圧によって本質
的にロータブレードの側壁間の距離が広がる。このよう
な液圧は、ロータへ気体供給を開始すると都合よく生
じ、停止中にロータブレードおよび気体注入配管の内部
を流れる液体部分ばかりでなく、それに含まれる可能性
のあるどんな有害な成分も、分散処理自体の開始前に都
合よく除去することができる。さらに本発明によれば、
ロータの内部構造は、ロータ軸の側から見た時、密閉空
間内でロータブレードの側壁の外縁により形成された分
散面上へ被分散気体が導入されるように、都合よく配列
されている。ここで、例えばロータ構体の中心部に気体
分配チャンバが形成され、被分散気体はそこからロータ
ブレードへ流入し、このロータブレードは、前記チャン
バに対して放射状に配列されている。この気体分配チャ
ンバはまた、ロータの内部に形成して、ロータブレード
の上または下にガイド部材を設けることもできる。その
内部空間は、被分散気体がそのガイド部材を通って下方
または上方のいずれかへロータブレードに向って流れる
ように設計されている。したがって、分散処理中に空気
が混入される液体は、分散面上でのみ分散気体と接触す
ることになる。この分散面には、ロータブレード１枚に
つき少なくとも１つの気体排出口が設けられている本発
明のロータブレードは１個または数個の箱状要素からな
り、この箱状要素は、互いの上部に実質的に垂直な位置
に配列されている。その外縁によって、ロータ軸から見
た場合、分散気体と空気混合すべき液体との間にロータ
ブレードの分散面が形成される。According to the present invention, the rotor blade is formed in a box shape, and the hydraulic pressure generated in the rotor blade essentially increases the distance between the side walls of the rotor blade. Such hydraulic pressure is conveniently created when the gas supply to the rotor is started, and not only the liquid part flowing inside the rotor blades and the gas injection pipe during the stop, but also any harmful components that may be contained therein. It can be conveniently removed before the start of the distributed processing itself. Further according to the invention,
The internal structure of the rotor is expediently arranged such that, when viewed from the rotor shaft side, the gas to be dispersed is introduced in a closed space onto the distribution surface formed by the outer edges of the side walls of the rotor blades. Here, for example, a gas distribution chamber is formed in the center of the rotor structure, from which the gas to be dispersed flows into the rotor blades, which are arranged radially with respect to said chamber. The gas distribution chamber may also be formed inside the rotor, with a guide member above or below the rotor blade. The interior space is designed such that the gas to be dispersed flows through the guide member either downward or upward toward the rotor blade. Therefore, the liquid into which air is mixed during the dispersion treatment comes into contact with the dispersion gas only on the dispersion surface. The dispersion surface is provided with at least one gas outlet per rotor blade. The rotor blade according to the invention comprises one or several box-shaped elements, which are arranged on top of each other. They are arranged in a substantially vertical position. The outer edge forms the dispersion surface of the rotor blade between the dispersed gas and the liquid to be air mixed when viewed from the rotor shaft.
【０００８】ロータブレードの形成に用いたれたこの箱
状要素はさらに、少なくとも２つの部品からなり、この
要素部品は断面が閉ループを形成している。したがっ
て、この要素部品は箱の壁を形成している。前記部品
は、少なくともその部品の１つが残りの部品より実質的
に薄いか、もしくはより弾性的であるか、または圧力抵
抗の弱い材料からなるように製造され、この場合、箱の
内部に生じる液圧によって箱の壁が互いに引き離されて
離間する。[0008] The box element used to form the rotor blade further comprises at least two parts, the element parts forming a closed loop in cross section. This element therefore forms the wall of the box. The parts are manufactured such that at least one of the parts is substantially thinner or more elastic than the other parts, or is made of a material with a lower pressure resistance, in which case the liquid generated inside the box The pressure pulls the walls of the boxes apart from each other.
【０００９】本発明によるロータブレードの箱状要素の
部品は、互いに連結して、その断面は、都合よくその頂
点が上方または下方に向いた矩形またはくさび状のいず
れかにしてある。The parts of the box-shaped element of the rotor blade according to the invention are connected to one another, and their cross-section is conveniently rectangular or wedge-shaped, with the apex pointing upwards or downwards.
【００１０】[0010]
【作用】本発明の分散装置は、スイッチを切ると、ロー
タの回転が停止して、分散気体の供給が停止する。ここ
で、周囲の液体は箱状要素へ、ロータブレードの分散面
上に位置する分散気体排出口を通って自由に流入する。
通常の処理条件では、周囲にある液体は、分散に不利な
成分を含有してこの気体排出口を塞ぐことがある。した
がって、ロータブレードの分散面上に位置する気体排出
口を通ってロータブレードのなかへ、分散気体排出口を
塞ぐことのある粒子が流入することもあり得る。本発明
によるロータブレードでは、排出口は幅が約１〜５mmで
あり、この場合、この幅の排出口によって、大きな有害
成分または物質のロータブレードへの流入が防止され
る。本発明のロータブレードを少なくとも２つの互いに
連結した部品で構成し、これら部品の少なくとも１つが
残りの部品より液圧に対する抵抗が劣るようにすること
によって、気体の排出に不利な成分を分散処理の開始時
に都合よくロータブレードの内部から除去するようにし
ている。この有害成分は、本発明によるロータの内部か
ら都合よく除去される。なぜなら、排出液の圧力に対し
て異なる抵抗力を有するこれらの部品は、互いに離隔さ
れ、分散気体の排出口が液体の排出中は２〜５倍に広が
るからである。ここでこれら不利な成分は、分散気体自
体の排出前にロータブレードの内部から都合よく除去さ
れる。液体が気体排出口から流出してしまうと、前記排
出口の離れていた壁は元の位置に戻る。In the dispersing apparatus of the present invention, when the switch is turned off, the rotation of the rotor is stopped, and the supply of the dispersed gas is stopped. Here, the surrounding liquid freely flows into the box-shaped element through the dispersion gas outlet located on the dispersion surface of the rotor blade.
Under normal processing conditions, the surrounding liquid may contain components that are disadvantageous for dispersion and block this gas outlet. Therefore, particles that may block the dispersed gas outlet may flow into the rotor blade through the gas outlet located on the dispersion surface of the rotor blade. In the rotor blade according to the invention, the outlet has a width of about 1 to 5 mm, where the outlet of this width prevents large harmful components or substances from flowing into the rotor blade. The rotor blade of the present invention is composed of at least two interconnected parts, at least one of which has a lower resistance to hydraulic pressure than the remaining parts, thereby distributing components which are disadvantageous for gas discharge in a dispersion treatment. At the start, it is conveniently removed from the interior of the rotor blade. This harmful component is advantageously removed from the interior of the rotor according to the invention. This is because those parts having different resistances to the pressure of the effluent are separated from each other and the outlet for the dispersed gas widens by a factor of 2 to 5 during the evacuation of the liquid. Here, these disadvantageous components are expediently removed from the interior of the rotor blade before discharging the dispersion gas itself. When the liquid flows out of the gas outlet, the wall separated from the outlet returns to its original position.
【００１１】このように本発明によれば、少なくとも部
分的に液体中またはスラリに沈めた回転可能なロータ
と、それに接続したブレードとを使用して、気体を液体
またはスラリに分散する方法および装置において、被分
散気体は、気体導管を介してロータの内部へ、そしてさ
らに、ロータブレードに形成され幅の調節可能な少なく
とも１つの排出口を介して周囲の液体またはスラリへ導
入される。Thus, according to the present invention, a method and apparatus for dispersing a gas into a liquid or slurry using a rotatable rotor at least partially submerged in or in a slurry and a blade connected thereto. The gas to be dispersed is introduced into the interior of the rotor via a gas conduit and further into the surrounding liquid or slurry via at least one adjustable-width outlet formed in the rotor blade.
【００１２】[0012]
【実施例】次に添付図面を参照して本発明をより詳細に
説明する。BRIEF DESCRIPTION OF THE DRAWINGS The invention will now be described in more detail with reference to the accompanying drawings.
【００１３】図１によれば、分散処理中は、ロータ軸２
を作動アセンブリ13によって回動すると、分散気体（こ
の場合は空気）が導気管１を介して、ロータ軸２の周囲
に形成されている中間スペース３へ導入される。この中
間スペース３は、ロータ軸２の周囲がシーリング４によ
って密封されている。中間スペース３からは、さらに空
気が入口５を介して中空ロータ軸２へ導入される。ロー
タ軸２の内部からは、ロータ６内に形成されたチャンバ
７へ空気が放出される。チャンバ７からは、ロータブレ
ード８へ放射状に空気が排出される。このブレードは、
箱状要素で作られている。ロータブレード８の箱状要素
（図２および図３）は、この箱の実質的に垂直な側壁９
がロータ軸２から外方へ向かうにつれ徐々に収束するよ
うに形成されている。ロータブレード８のこの箱状要素
はさらに、２つの部品10および11からなり、断面が閉ル
ープを形成している。部品10は部品11より幾分薄い材料
で作られて、ロータブレードから排出される液圧が部品
10に作用し、部品10および11がさらに離隔されて、前記
部品10と同11との間に位置する分散気体の排出口12が広
がるようになっている。According to FIG. 1, during the dispersion processing, the rotor shaft 2
Is rotated by the actuating assembly 13, the dispersed gas (in this case, air) is introduced via the air guide tube 1 into the intermediate space 3 formed around the rotor shaft 2. The intermediate space 3 is sealed around the rotor shaft 2 by a sealing 4. From the intermediate space 3, further air is introduced into the hollow rotor shaft 2 via the inlet 5. Air is discharged from the inside of the rotor shaft 2 to a chamber 7 formed in the rotor 6. Air is radially exhausted from the chamber 7 to the rotor blade 8. This blade is
Made of box-shaped elements. The box-shaped element of the rotor blade 8 (FIGS. 2 and 3) is provided with substantially vertical side walls 9 of this box.
Are formed so as to gradually converge from the rotor shaft 2 outward. This box-shaped element of the rotor blade 8 furthermore consists of two parts 10 and 11, the cross section forming a closed loop. Part 10 is made of a somewhat thinner material than part 11, so that the hydraulic pressure discharged from the rotor blades
Acts on 10, while separated parts 10 and 11 further have outlet port 12 of the distributed gas positioned so that the spread between the part 10 and the 11.
【００１４】本発明の方法を適用する際、固体粒子を含
む分散可能な液体またはスラリにロータを部分的に沈ま
せて、分散気体として働く空気を液体表面の上から導気
管１を介して中間スペース３を通してロータ軸２へ注入
する。この液没に関連して、また他の場合にも、空気供
給を遮断すると、分散に供する液体またはスラリに含ま
れる固体粒子は、排出口12を介してロータブレード８へ
自由に流入できる。このような場合、装置の停止もあり
得る。空気供給を開始すると、ロータ内部に存在する分
散可能な液体またはスラリに圧力衝撃を与える。本発明
によれば、この圧力衝撃は、ロータブレード８の箱状要
素の部品11には有利に作用する。部品11は、図４によれ
ば、ロータブレードの部品10より薄い材料で作られてい
る。この圧力衝撃のため、ロータブレードの部品11は有
利に屈曲して排出口の幅が増し、ロータブレード８の内
部へ流入する恐れのある固体粒子は、周囲の液体または
スラリへ都合よく戻される。In applying the method of the present invention, the rotor is partially submerged in a dispersible liquid or slurry containing solid particles, and air serving as a dispersing gas is interposed from above the liquid surface through an air guide tube 1. Inject into the rotor shaft 2 through the space 3. In connection with this submersion, and in other cases, when the air supply is shut off, the solid particles contained in the liquid or slurry to be dispersed can flow freely into the rotor blade 8 via the outlet 12. In such a case, the device may be stopped. Starting the air supply exerts a pressure impact on the dispersible liquid or slurry present inside the rotor. According to the invention, this pressure impact has an advantageous effect on the component 11 of the box-shaped element of the rotor blade 8. The part 11 is, according to FIG. 4, made of a thinner material than the part 10 of the rotor blade. Due to this pressure impact, the rotor blade part 11 is advantageously bent to increase the width of the outlet and solid particles which may flow into the interior of the rotor blade 8 are advantageously returned to the surrounding liquid or slurry.
【００１５】図４において、分散処理中に作動アセンブ
リ20がロータ軸21を回動させ、分散気体として働く空気
が導気管22を介して、ロータ軸21の周囲に位置する中間
スペース23へ導入される。この中間スペース23は、軸21
に対してシーリング24によって密封されている。この中
間スペース23からは、空気が入口25を介してロータ軸21
の内部へ導入される。ロータ軸21内からは、空気が先
ず、ロータブレード26の下に取り付けられたガイド部材
27の内部へ、そしてさらに上方へ向かい、箱状ロータブ
レード26の分散面に設けられた排出口28を通して周囲の
液体へ排出される。In FIG. 4, during the dispersion process, the operating assembly 20 rotates the rotor shaft 21, and air serving as a dispersion gas is introduced into the intermediate space 23 located around the rotor shaft 21 via the air guide tube 22. You. This intermediate space 23 is
Sealed by a sealing 24. From this intermediate space 23, air flows through the inlet 25 to the rotor shaft 21.
Is introduced inside. From the inside of the rotor shaft 21, air is first supplied to a guide member attached below the rotor blade 26.
To the inside of 27 and further upward, it is discharged to the surrounding liquid through a discharge port 28 provided in the dispersion surface of the box-shaped rotor blade 26.
【００１６】図５の実施例は、次の点で図４の実施例と
一致している。すなわち、分散処理中に作動アセンブリ
30がロータ軸31を回動させ、分散気体として働く空気
が、ロータ軸31の周囲に設けられた中間スペース33へ導
気管32を介して導入される。この中間スペース33は、そ
の軸に対してシーリング34によって密封されている。中
間スペース33からは、空気が入口35を通してロータ軸31
の内部へ導入される。図４の実施例と異なる点は、軸31
の内部から空気が先ず、ロータブレード36の上部に設け
られたガイド部材37の内部へ、そしてさらに下方に向か
い、箱状ロータブレード36の分散面に設けられた排出口
38を介して周囲の液体へ排出されることである。The embodiment of FIG. 5 is identical to the embodiment of FIG. 4 in the following points. That is, the working assembly during distributed processing
The 30 rotates the rotor shaft 31, and the air acting as the dispersion gas is introduced via the air guide tube 32 into the intermediate space 33 provided around the rotor shaft 31. This intermediate space 33 is sealed by a sealing 34 to its axis. From the intermediate space 33, air flows through the inlet 35 to the rotor shaft 31.
Is introduced inside. The difference from the embodiment of FIG.
From the inside, firstly, into the inside of the guide member 37 provided on the upper part of the rotor blade 36, and further downward, the air outlet provided on the dispersion surface of the box-shaped rotor blade 36
To be discharged to the surrounding liquid via 38.
【００１７】図６および図７は、ロータブレードの気体
排出口の形状を示し、図６の開口12はその先端が上方を
向いたくさび形に、図７のものはその先端が下方を向い
たくさび形になっている。FIGS. 6 and 7 show the shape of the gas outlet of the rotor blade. The opening 12 in FIG. 6 has a wedge shape with its tip facing upward, and the opening in FIG. 7 has a tip facing downward. It has a wedge shape.
【００１８】上述の実施例に加えて、本発明は当然なが
ら、添付の特許請求の範囲内で広義に適用することがで
きる。In addition to the embodiments described above, the invention can of course be broadly applied within the scope of the appended claims.
【００１９】[0019]
【発明の効果】本発明の方法と装置を適用すると、装置
に必要な駆動力は、分散気体の装置への供給が、例えば
当該処理工程の特定条件によって停止されても、本質的
に増大しない。したがって、装置の回動部材および作動
部材は過負荷にはならない。ゆえに、本発明の分散装置
によれば、有利なことに、被分散気体と周囲の液体との
間の酸素の移動効率が改善されるばかりでなく、有利な
駆動力レベルでの液体の撹拌が改善される。By applying the method and apparatus of the present invention, the driving force required for the apparatus does not essentially increase even if the supply of the dispersed gas to the apparatus is stopped, for example, due to the specific conditions of the process. . Therefore, the rotating member and the operating member of the device are not overloaded. Therefore, according to the dispersing device of the present invention, not only is the transfer efficiency of oxygen between the gas to be dispersed and the surrounding liquid improved, but also the stirring of the liquid at an advantageous driving force level is achieved. Be improved.
【図１】本発明の好ましい実施例の側面図である。FIG. 1 is a side view of a preferred embodiment of the present invention.
【図２】図１の実施例の断面A-A を示す図である。FIG. 2 is a diagram showing a cross section AA of the embodiment of FIG. 1;
【図３】図２の実施例の断面B-B を示す図である。FIG. 3 is a view showing a cross section BB of the embodiment of FIG. 2;
【図４】本発明の他の好ましい実施例の側面図である。FIG. 4 is a side view of another preferred embodiment of the present invention.
【図５】本発明の好ましい第３の実施例の側面図であ
る。FIG. 5 is a side view of a third preferred embodiment of the present invention.
【図６】本発明によるロータブレードの気体排出口の有
利な形状を示す図である。FIG. 6 shows an advantageous shape of the gas outlet of the rotor blade according to the invention.
【図７】本発明によるロータブレードの気体排出口の他
の有利な形状を示す図である。FIG. 7 shows another advantageous shape of the gas outlet of the rotor blade according to the invention.
1,22,32 導気管 2,21,31 ロータ軸 3,23,33 中間スペース 4,24,34 シーリング 5,25,35 入口 6 ロータ 7 チャンバ 8,26,36 ロータブレード 9 側壁 10,11 壁部品 12,28,38 排出口 13,20,30 作動アセンブリ 27,37 ガイド部材 1,22,32 Air duct 2,21,31 Rotor shaft 3,23,33 Intermediate space 4,24,34 Sealing 5,25,35 Inlet 6 Rotor 7 Chamber 8,26,36 Rotor blade 9 Side wall 10,11 Wall Parts 12,28,38 Outlet 13,20,30 Actuating assembly 27,37 Guide member
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B01F 3/04 ──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. 7 , DB name) B01F 3/04
Claims (9)
法であって、該方法は、ロータと、該ロータに接続した
ブレードとを含む装置を使用し、 該ロータは、少なくとも部分的に液体またはスラリ中に
沈められ、 ロータブレードが少なくとも１つの箱状要素からなり、
該箱状要素の部品は被分散気体の排出開口の壁を形成
し、該排出開口は幅が調節可能であり、 前記ロータブレードの箱状要素の部品のうち、少なくと
も１つは、残りの部品より実質的に薄いか、またはより
弾性的な材料からなり、 気体の供給を開始すると、例えば運転停止中に前記箱状
要素に入っていた液体／スラリは圧力を受け、前記圧力
を受けた液体／スラリは前記１つの部品を離隔し、該液
体／スラリが排出されている間、前記排出開口を広げ、 液体が気体排出口から流出してしまうと、該排出口の離
隔していた部品を元の位置に戻す ことを特徴とする気体
を液体またはスラリ中に分散する方法。1. A method for dispersing a gas in a liquid or a slurry.
A method comprising: a rotor; and a rotor connected to the rotor.
And an apparatus comprising: a rotor comprising at least partially in a liquid or a slurry.
Submerged, the rotor blades comprising at least one box-like element,
The parts of the box-shaped element form the walls of the discharge opening of the gas to be dispersed
The outlet opening is adjustable in width and at least one of the components of the box-shaped element of the rotor blade.
One is substantially thinner or more
It is made of an elastic material, and when the supply of gas is started, for example,
The liquid / slurry contained in the element is subjected to pressure, said pressure
The received liquid / slurry separates the one part,
While the body / slurry is being discharged, the discharge opening is widened, and if liquid escapes from the gas discharge port, the discharge port is separated.
A method for dispersing a gas in a liquid or slurry , comprising returning a separated component to its original position .
ータの内部に設けられたチャンバから、前記ロータブレ
ードに設けられた排出開口へ気体を放射状に供給するこ
とを特徴とする方法。2. The method according to claim 1, wherein gas is supplied radially from a chamber provided inside the rotor to a discharge opening provided in the rotor blade.
ータの内部に接続されたガイド部材から、被分散気体を
上方に向けて前記排出開口へ供給することを特徴とする
方法。3. The method according to claim 1, wherein a gas to be dispersed is supplied upward to the discharge opening from a guide member connected inside the rotor.
ータの内部に接続されたガイド部材から、被分散気体を
下方に向けて前記排出開口へ供給することを特徴とする
方法。4. The method according to claim 1, wherein a gas to be dispersed is supplied downward to the discharge opening from a guide member connected inside the rotor.
法において、前記液体／スラリが排出されている間、前
記排出開口の幅を分散気体の圧力によって調節すること
を特徴とする方法。 5. The method according to claim 1 , wherein the width of the discharge opening is adjusted by the pressure of the dispersing gas while the liquid / slurry is being discharged .
置であって、該装置は、ロータと、該ロータに接続した
ブレードとを含み、 ロータブレードは少なくとも１つの箱状要素からなり、
該箱状要素の部品は被分散気体の排出開口の壁を形成
し、該排出開口は幅が調節可能であり、 前記ロータブレードの箱状要素の部品のうち、少なくと
も１つは、残りの部品より実質的に薄いか、またはより
弾性的な材料からなり、 気体の供給を開始すると、例えば運転停止中に前記箱状
要素に入っていた液体／スラリは圧力を受け、前記圧力
を受けた液体／スラリは前記１つの部品を離隔し、該液
体／スラリが排出されている間、前記排出開口は広が
り、 液体が気体排出口から流出してしまうと、前記離隔して
いた部品は元の位置に戻ることを特徴とする気体を液体
またはスラリ中に分散する装置。 6. A device for dispersing a gas in a liquid or slurry.
An apparatus, comprising: a rotor; and a rotor connected to the rotor.
A rotor blade comprising at least one box-shaped element,
The parts of the box-shaped element form the walls of the discharge opening of the gas to be dispersed
The outlet opening is adjustable in width and at least one of the components of the box-shaped element of the rotor blade.
One is substantially thinner or more
It is made of an elastic material, and when the supply of gas is started, for example,
The liquid / slurry contained in the element is subjected to pressure, said pressure
The received liquid / slurry separates the one part,
The discharge opening is widened while the body / slurry is being discharged.
If the liquid flows out of the gas outlet,
The gas that has returned to its original position
Or a device that disperses in the slurry.
ータブレードの排出開口は、実質的に矩形の形状である
ことを特徴とする装置。7. The apparatus according to claim 6 , wherein the discharge opening of the rotor blade is substantially rectangular in shape.
て、前記ロータブレードの排出開口は、実質的にその先
端が下方に向いたくさび状であることを特徴とする装
置。8. Apparatus according to claim 6 , wherein the outlet opening of the rotor blade is substantially wedge-shaped with its tip pointing downwards.
て、前記ロータブレードの排出開口は、実質的にその先
端が上方に向いたくさび状であることを特徴とする装
置。9. Apparatus according to claim 6 , wherein the outlet opening of the rotor blade is substantially wedge-shaped with its tip pointing upwards.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI924717A FI94317C (en) | 1992-10-16 | 1992-10-16 | Methods and apparatus for dispersing gas in liquid |
| FI924717 | 1992-10-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06198151A JPH06198151A (en) | 1994-07-19 |
| JP3184685B2 true JP3184685B2 (en) | 2001-07-09 |
Family
ID=8536069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28210593A Expired - Fee Related JP3184685B2 (en) | 1992-10-16 | 1993-10-18 | Method and apparatus for dispersing a gas in a liquid or slurry |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US5389310A (en) |
| EP (1) | EP0593074B1 (en) |
| JP (1) | JP3184685B2 (en) |
| AT (1) | ATE163868T1 (en) |
| AU (1) | AU666775B2 (en) |
| CA (1) | CA2108522C (en) |
| DE (1) | DE69317348T2 (en) |
| FI (1) | FI94317C (en) |
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| US5925293A (en) | 1996-10-04 | 1999-07-20 | General Signal Corporation | Mixer sparging apparatus |
| US5800742A (en) * | 1996-12-30 | 1998-09-01 | Cheng; Mao-Chung | Underwater air delivering device |
| FR2784311B1 (en) * | 1998-10-09 | 2000-12-08 | Air Liquide | DEVICE FOR AGITATING A LIQUID IN A REACTOR AND FOR INJECTING A GAS IN THIS LIQUID |
| DE29818255U1 (en) * | 1998-10-13 | 2000-02-17 | Ekato Rühr- und Mischtechnik GmbH, 79650 Schopfheim | Self-priming, rotating dispersing device |
| US6318705B1 (en) * | 2000-01-14 | 2001-11-20 | Jet, Inc. | Aspirator |
| JP4596658B2 (en) * | 2000-03-10 | 2010-12-08 | 佐竹化学機械工業株式会社 | Stirrer for aeration stirring |
| FI115448B (en) | 2001-04-04 | 2005-05-13 | Outokumpu Oy | Flotation |
| US20030138124A1 (en) * | 2002-01-24 | 2003-07-24 | Rosa Rivera | Floral or gift display with remote voice or sound recording and playback capability |
| US7156378B2 (en) * | 2003-10-10 | 2007-01-02 | Maclaren David S | Air seal enclosure for an aerator |
| US7771737B2 (en) | 2004-01-09 | 2010-08-10 | Ecolab Inc. | Medium chain peroxycarboxylic acid compositions |
| CN101352155B (en) * | 2008-08-15 | 2010-12-08 | 金湖小青青机电设备有限公司 | Vane type oxygen increasing machine |
| CN101427663B (en) * | 2008-12-16 | 2010-12-08 | 金湖小青青机电设备有限公司 | Vane type oxygen increasing machine for air flue oxygenation |
| DE102010004206A1 (en) * | 2009-06-08 | 2010-12-09 | EKATO Rühr- und Mischtechnik GmbH | Rühranrodnung |
| JP5652758B2 (en) * | 2010-06-24 | 2015-01-14 | 雅 田篭 | Pump aeration device |
| JP5665392B2 (en) * | 2010-07-02 | 2015-02-04 | 株式会社西研デバイズ | Ultra-fine bubble generator |
| US9415371B2 (en) | 2012-04-13 | 2016-08-16 | Reliance Industries Limited | Multi-phase reactor system with slinger liquid reflux distributor |
| CN103525689B (en) * | 2013-10-23 | 2014-10-08 | 南京工业大学 | High dissolved oxygen bioreactor for high-density culture of genetically engineered bacteria and culture control method |
| FI125737B (en) * | 2013-11-29 | 2016-01-29 | Outotec Finland Oy | Gas entry system for a flotation machine and method to prevent clogging of its gas outlet |
| US10675599B2 (en) | 2017-07-31 | 2020-06-09 | Sterling Products, Inc. | Mixing paddle for a gravimetric blender |
| CN113617325B (en) * | 2021-09-01 | 2022-10-04 | 南京工业大学 | Stirring formula gas-liquid reactor |
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|---|---|---|---|---|
| US1383881A (en) * | 1919-03-25 | 1921-07-05 | Thomas Joseph Ingram | Flotation apparatus |
| US1583591A (en) * | 1922-06-29 | 1926-05-04 | William E Greenawalt | Apparatus for treating liquids with gases |
| US2217231A (en) * | 1938-04-04 | 1940-10-08 | Morse Bros Machinery Company | Rubber impeller |
| US2235218A (en) * | 1939-09-30 | 1941-03-18 | Firestone Tire & Rubber Co | Diffusion apparatus |
| DE1113210B (en) * | 1957-02-14 | 1961-08-31 | Patentauswertung Vogelbusch Ge | Device for the finest distribution of gases in liquids |
| GB976560A (en) * | 1962-08-17 | 1964-11-25 | Pro Tech Inc | Mixing device |
| DE1457186A1 (en) * | 1965-10-19 | 1970-06-04 | Weinrich Heinrich Dr Ing | Circulating propeller for the introduction of gas into liquids |
| US3491880A (en) * | 1967-12-07 | 1970-01-27 | Arthur G Mckee Co | Flotation apparatus and process |
| US3917763A (en) * | 1972-09-05 | 1975-11-04 | Werner Frank D | Aerator |
| US4078026A (en) * | 1973-06-05 | 1978-03-07 | Outokumpu Oy | Device for dispersing gas into a liquid |
| DE2424881A1 (en) * | 1974-05-22 | 1975-12-04 | Willi Horcher | Avoiding solid deposits on aeration pipes - using vertical surface rising from centre of pipe to surface |
| AT348953B (en) * | 1977-08-26 | 1979-03-12 | Alfa Laval Stalltech | DEVICE FOR GASIFICATION AND CIRCULATION OF LIQUIDS |
| US4425232A (en) * | 1982-04-22 | 1984-01-10 | Dorr-Oliver Incorporated | Flotation separation apparatus and method |
| DE3329753A1 (en) * | 1983-08-17 | 1985-02-28 | Max 8255 Schwindegg Geisberger | Method and device for the treatment of media laden with solids, especially of liquid manure |
| JPS60200923A (en) * | 1984-03-23 | 1985-10-11 | Showa Alum Corp | Device for fining and dispersing foam |
| DE3784371T2 (en) * | 1986-05-12 | 1993-06-24 | Mitsubishi Heavy Ind Ltd | APPARATUS FOR TREATING A SOLUTION OR SLUDGE. |
| JPS63310628A (en) * | 1987-02-21 | 1988-12-19 | ▲土▼田 正志 | Propeller type transportation device |
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-
1992
- 1992-10-16 FI FI924717A patent/FI94317C/en active
-
1993
- 1993-10-07 AU AU48846/93A patent/AU666775B2/en not_active Ceased
- 1993-10-15 CA CA002108522A patent/CA2108522C/en not_active Expired - Fee Related
- 1993-10-15 DE DE69317348T patent/DE69317348T2/en not_active Expired - Lifetime
- 1993-10-15 EP EP93116717A patent/EP0593074B1/en not_active Expired - Lifetime
- 1993-10-15 AT AT93116717T patent/ATE163868T1/en not_active IP Right Cessation
- 1993-10-15 US US08/138,400 patent/US5389310A/en not_active Expired - Lifetime
- 1993-10-18 JP JP28210593A patent/JP3184685B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| FI924717A (en) | 1994-04-17 |
| DE69317348T2 (en) | 1998-07-02 |
| EP0593074A1 (en) | 1994-04-20 |
| FI924717A0 (en) | 1992-10-16 |
| CA2108522A1 (en) | 1994-04-17 |
| AU666775B2 (en) | 1996-02-22 |
| FI94317B (en) | 1995-05-15 |
| US5389310A (en) | 1995-02-14 |
| FI94317C (en) | 1995-08-25 |
| DE69317348D1 (en) | 1998-04-16 |
| AU4884693A (en) | 1994-04-28 |
| ATE163868T1 (en) | 1998-03-15 |
| EP0593074B1 (en) | 1998-03-11 |
| CA2108522C (en) | 1998-06-30 |
| JPH06198151A (en) | 1994-07-19 |
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